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Finding the Fourth Proportional to 446,087.40, 668,909.70 and 161,766.60

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Solution

The fourth proportional to 446,087.40, 668,909.70 and 161,766.60 is: 242,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,087.40 : 668,909.70 = 161,766.60 : x
  2. Step 2: Convert to fraction form
    446,087.40/668,909.70 = 161,766.60/x
  3. Step 3: Cross multiply
    446,087.40x = 668,909.70 × 161,766.60
  4. Step 4: Simplify right side
    446,087.40x = 108,207,247,876.02
  5. Step 5: Solve for x
    x = 108,207,247,876.02/446,087.40
  6. Step 6: Final answer
    x = 242,569.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.